Two men have been arrested in connection with the attempted murder of a 17-year-old boy. 

The teenager was run down by a car and stabbed twice in Dorset Avenue at 10.15pm on November 21. 

He remains critically ill in hospital. 

On Friday, detectives appealed for Richard Frost, 35, his partner Kay Phillips, 26, and their five-month-old son to contact police. 

Officers wanted to question Mr Frost in connection with the attempted murder and there was growing concern for the safety of both Kay and the baby. 

Last night a 35-year-old man from Chelmsford was arrested at a police station in the county on suspicion of attempted murder and a 22-year-old man was arrested at his home in the Thurrock area, also on suspicion of attempted murder. 

At this stage, police have still been unable to make any direct contact with Kay Phillips and are continuing to attempt to find their whereabouts and ascertain their safety and welfare. 

Kay Phillips is described as white, approximately 5ft 4in tall and has shoulder-length or long blonde hair.

Anyone with information on her whereabouts is urged to contact Essex Police on 999 while those with information on the attempted murder of the teenage boy should contact detectives in the incident room at Brentwood on 101, call Crimestoppers anonymously on 0800 555111 or email SCDappeals@essex.pnn.police.uk